Minelab Metal Detector x-terra User manual

1

Metal detecting is a fascinating and rewarding activity

enjoyed by people all over the world. By getting to know

your X-Terra you can become one of the many who ﬁnd

valuable coins, relics and jewellery on a regular basis.

The X-Terra is a high-precision instrument incorporating

Minelab’s latest single frequency technology, VFLEX.

VFLEX processes a pure single frequency, ensuring

that you can enjoy the hobby at all times, conﬁdent

that you are using a highly-tuned and dependable

detector. In other words, a SERIOUS detector.

This pocket sized manual is designed to help both

the beginner and expert treasure hunter get the best

performance out of the X-Terra 30 or X-Terra 50.

* This asterisk will appear

throughout the manual,

indicating features available

on the X-Terra 50 model only.

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Back Cover

VFLEX Technolog

y

Assembling Your X-Terr

a

Connecting the Coi

l

Shaft Assembl

y

Armrest Assembl

y

Connecting the Control Bo

x

Coil Cable Assembl

y

Inserting Batterie

s

Ready for Us

e

Quick Start Referenc

e

Detecting Basics

Holding the Detecto

r

Sweeping the Coi

l

Introducing the Control Pane

l

Keypad Layou

t

Turning on the Detecto

r

LCD Layout

Detecting Exercise

Example Detections

How Detectors Work

Target ID

Discrimination Scale

Preset Discrimination Patterns

Choosing a Discrimination Pattern

X-Terra 30

X-Terra 50 / All Metal Shortcut

Pinpointin

g

Recovering the Targe

t

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Detailed Detector Operation

LCD Icon

s

Operatio

n

Selecting Menu Settings

Sensitivity

Adjusting Sensitivity

Volume

Adjusting Volume

Noise Cancel*

Choosing a Noise Cancel Channel*

Ground Balance*

Adjusting Ground Balance*

Editing Discrimination Patterns

Method

1

Method 2

Erasing Patterns

Factory Presets

Reference Information

Sounds

Error Messages

Battery Behaviour

Care of your X-Terra

Accessory Headphones

Protective Accessories

Accessory Coils

X-Terra Speciﬁcations

X-Terra Model Features

User Preference

s

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Power

Supply

Audio

Transmit

LCD ReceiveKeypad

PRIMARY MICRO

(IN CONTROL BOX)

DIGITAL SIGNAL PROCESSING

(DSP)

CODEC SIGNAL CONVERSION

The X-Terra detectors are Minelab’s ﬁrst products

to incorporate VFLEX Technology.

VFLEX uses state of the art digital and mixed-signal

components to enhance standard single frequency

technology by replacing most of the analogue

circuitry with digital signal processing. The small

amount of analogue circuitry still employed has

been very carefully designed and calibrated to

obtain the outstanding sensitivity, stability and

repeatability required to match the performance

of the processing in the digital domain.

This radical departure from traditional approaches

to metal detector design has been made possible

by advances in electronics that power personal

digital assistants, cell (mobile) phones and

high-ﬁdelity portable audio.

Analog Signal

Control Box

For the X-Terra user, this precision means

dependable performance and improved immunity

to environmental conditions such as ground

mineralization, electromagnetic interference

and temperature variations.

VFLEX requires coils that are accurately constructed

and calibrated. Every time the detector starts up,

the micro-controllers in the control box and the

coil establish communication through a digital

data link.

Information about the coil is sent to the control box,

so the detector ‘knows’ what type of coil is attached

and can set the correct operating parameters.

This optimizes the performance, and also makes

the detector ‘future proof’, in that it will be capable

of operating at diﬀerent frequencies* depending

on the electronic properties of the coil.

Analog Signal

Coil

Precision VFLEX Signal

Standard VLF Signal

(Without VFLEX)

Transmit

Receive

SECONDARY MICRO

(IN COIL)

SENSING + TRANSMITTING

COIL TYPE, SIZE, FREQUENCY

6

Rubber washers (2)

Plastic wing nut

Plastic bolt

Armrest screw

Armrest strap

Velcro tabs (2)

Before assembling your X-Terra please check

that the package includes these parts:

Coil

Skidplate (ﬁtted to coil)

Control box

Armrest

Stand

Lower shaft

Middle shaft

Upper shaft

Warranty card

Instruction manual

you’re holding it

:-)

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Plug the two rubber washers into the holes

on either side of the lower shaft yoke.

Slide the yoke into the yoke bracket on top

of the coil. Ensure that the spring loaded

pin in the lower shaft is underneath.

Insert the plastic bolt through the yoke

and the yoke bracket.

Fasten with the plastic wing nut provided,

being careful not to damage the thread

of the bolt by over-tightening. This may

need to be loosened to adjust the coil to

a comfortable detecting angle.

The coil cable is directly wired into the

coil and is not removable. Any attempt to

disconnect this cable will void your warranty.

9

Ensure that the twistlocks of the shafts

are loosened by rotating them counter-

clockwise.

Compress the spring loaded pin in the

lower shaft and slide it into the middle shaft

until the pin reaches the adjustment holes.

The pin will spring out and click into place.

Attach the middle shaft to the upper

shaft in the same way.

Once shafts are assembled, lock them in

position by rotating twistlocks clockwise.

The upper shaft assembly location uses

two spring loaded pins to strengthen the

joint, one on either side of the shaft

10

Place the armrest onto the top of the upper

shaft, lining up the central hole in the

armrest with a hole in the aluminium shaft.

Position the armrest to suit your arm length.

(Holding the Detector, pg. 15)

Insert the screw up through the stand, upper

shaft and armrest. Tighten the screw, being

careful not to overtighten and damage the

thread.

With the velcro side facing upwards, thread

the armrest strap through both slots in the

armrest. Ensure the end of the strap will

be fastened outwards from your arm.

The X-Terra is designed to be used in both the

left and right hand. This diagram shows the

velcro strap threaded outwards for the left arm.

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Connecting

With the LCD facing up, push the control

box onto the end of the handle until it

ﬁts into place.

The LCD window has a protective

ﬁlm aﬃxed to prevent scratching.

This may be removed when the

detector is fully assembled.

The control box may be easily removed

for packing and transport in a carry bag.

Disconnecting

Brace the detector ﬁrmly against

yourself, grasp the control box and

pull it away from the handle.

Wind the coil cable around the lower

and middle shaft enough times to take

up the slack.

Use the velcro tabs to keep the coil cable

in place against the shaft. It is recommended

that one tab is used on the lower shaft close

to the coil and the other tab on the middle

shaft before the cable reaches across to

the control box.

Align the coil plug and connect into

the socket in the back of the control box,

lightly tightening the retaining ring to

hold it in place.

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The X-Terra uses 4 X AA batteries which

are not included with the detector.

(Battery

Behaviour, pg. 62)

Access the battery compartment via the

battery door located on the side of the

control box. Slide the battery compartment

door upwards with your thumb.

Place individual batteries into the

compartment as illustrated, ensuring

the positive (

+) and negative (–) contacts

match the diagram on the control box.

Close the battery door by pushing and

sliding it downwards.

If the detector does not turn on check the

battery orientation. The detector will not

be damaged if the batteries are inserted

incorrectly.

CONGRATULATIONS!

YOU HAVE SUCCESSFULLY

ASSEMBLED YOUR X-TERRA.

IT IS NOW READY FOR DETECTING!

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Thread your arm through the armrest

and strap. Grasp the handle of the detector

and rest your forearm in the armrest.

Your elbow should sit just above the top

of the armrest. Lightly tighten the velcro

strap and secure it around your arm.

Shaft is the

correct length

Shaft is too short

The correct position of armrest and length

of shaft should allow you to swing the

coil in front of your body without any

uncomfortable stretching or stooping.

To adjust the length of the shafts, undo the

twistlocks, compress the spring pins of the

shafts and move them up or down to suit.

Once all shafts are clipped into position,

rotate twistlocks clockwise onto the shafts

until a ﬁrm clamping action is achieved.

(Shaft Assembly, pg. 9)

To adjust the position of the armrest

remove the armrest screw and move the

armrest and stand to the desired position.

(Armrest Assembly, pg.10)

Think of the detector as an extension of

your arm. It should be straight with your

forearm and feel light and comfortable

when you pick it up.

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coil parallel to the ground

Once outside, practice sweeping the coil

over the ground in a side-to-side motion,

while walking forward slowly. Slightly overlap

the previous sweep to ensure a full ground

coverage. An approximate sweep speed is 3

seconds from left to right to left.

It is important to keep the coil close and

parallel to the ground at all times. This will

increase detection depth and response to

small objects. Avoid excessive brushing

of the coil on the ground, as this may result

in false signals and inaccurate target ID’s.

A variation in coil height at the end of each

swing may also cause confusing sounds and

reduce detection depth.

1” (2.5cm)

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POWER turns the detector

on/oﬀ.

Accesses and scrolls through

detecting settings.

This button has two functions.

Assists in locating the exact

position of a target prior to

recovery (

PINPOINT).

Exits menu settings, and

returns to detection (

DETECT).

Adjusts settings and scrolls to

the left (

–) or right (+) through

the discrimination segments

.

Scrolls through the diﬀerent

discrimination patterns.

Accepts or rejects certain

metals by turning on/oﬀ

individual discrimination

segments.

Toggles between the selected

discrimination pattern and

the all metal pattern

.

Activates the manual

adjustment to compensate

for diﬀerent types of soil.

*

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1

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5

AL

1

2

3

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5

AL

50

30

50

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Liquid Crystal Display (LCD) area

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There are many metallic objects inside

the house (e.g. nails in the ﬂoor, reinforcing

in the walls) that will result in overloading

the detector’s electronics. There may also

be interference from TV sets and other

household appliances. In this environment

the detector may give erratic performance

and numerous false signals.

If the detector emits an overload sound

and displays OL

(Error Messages, pg. 61) move the

coil away from the source of the overload.

It is best to only turn the detector on

when outside, away from sources

of electromagnetic disturbance.

Press POWER

A short start up sequence will display

and a tune will be heard.

Once on, the detector will be in automatic

detection. There will be no numeric

reading until a metal object is detected.

Overloading is not harmful to the

detectors electronics.

Many of the screen pictures in this

manual that refer to both models,

show the X-Terra 50 display only.

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